SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2019:3266-1)

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:3266-1.
# The text itself is copyright (C) SUSE.
#

include('compat.inc');

if (description)
{
  script_id(132009);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/04");

  script_cve_id(
    "CVE-2018-10811",
    "CVE-2018-16151",
    "CVE-2018-16152",
    "CVE-2018-17540",
    "CVE-2018-5388"
  );

  script_name(english:"SUSE SLED12 / SLES12 Security Update : strongswan (SUSE-SU-2019:3266-1)");

  script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"This update for strongswan provides the following fixes :

Security issues fixed :

CVE-2018-5388: Fixed a buffer underflow which may allow to a remote
attacker with local user credentials to resource exhaustion and denial
of service while reading from the socket (bsc#1094462).

CVE-2018-10811: Fixed a denial of service during the IKEv2 key
derivation if the openssl plugin is used in FIPS mode and HMAC-MD5 is
negotiated as PRF (bsc#1093536).

CVE-2018-16151,CVE-2018-16152: Fixed multiple flaws in the gmp plugin
which might lead to authorization bypass (bsc#1107874).

CVE-2018-17540: Fixed an improper input validation in gmp plugin
(bsc#1109845).

Other issues addressed: Fixed some client fails when the scep server
URL is used with HTTPS protocol (bsc#1071853).

Reject Diffie-Hellman key exchanges using primes smaller than 1024
bit.

Handle unexpected informational message from SonicWall. (bsc#1009254)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1009254");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1071853");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1093536");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1094462");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1107874");
  script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1109845");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10811/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-16151/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-16152/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-17540/");
  script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-5388/");
  # https://www.suse.com/support/update/announcement/2019/suse-su-20193266-1/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4f972723");
  script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud 8:zypper in -t patch
SUSE-OpenStack-Cloud-8-2019-3266=1

SUSE OpenStack Cloud 7:zypper in -t patch
SUSE-OpenStack-Cloud-7-2019-3266=1

SUSE Linux Enterprise Server for SAP 12-SP3:zypper in -t patch
SUSE-SLE-SAP-12-SP3-2019-3266=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2019-3266=1

SUSE Linux Enterprise Server for SAP 12-SP1:zypper in -t patch
SUSE-SLE-SAP-12-SP1-2019-3266=1

SUSE Linux Enterprise Server 12-SP5:zypper in -t patch
SUSE-SLE-SERVER-12-SP5-2019-3266=1

SUSE Linux Enterprise Server 12-SP4:zypper in -t patch
SUSE-SLE-SERVER-12-SP4-2019-3266=1

SUSE Linux Enterprise Server 12-SP3-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2019-3266=1

SUSE Linux Enterprise Server 12-SP3-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-BCL-2019-3266=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2019-3266=1

SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-BCL-2019-3266=1

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2019-3266=1

SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP4-2019-3266=1

SUSE Enterprise Storage 5:zypper in -t patch
SUSE-Storage-5-2019-3266=1");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-16152");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/05/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/12");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-hmac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-ipsec-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:strongswan-libs0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"SuSE Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1|2|3|4|5)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1/2/3/4/5", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-hmac-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-hmac-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"4", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-hmac-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-hmac-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"2", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-hmac-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLES12", sp:"5", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-debugsource-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-ipsec-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-ipsec-debuginfo-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-libs0-5.1.3-26.13.1")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"strongswan-libs0-debuginfo-5.1.3-26.13.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "strongswan");
}